Thank you for your answers. Really appreciate that. Unfortunately, I was too slow, the owner sold the noname supersocket 7. Yeah, should took it directly. So I've ended up only with that PCchips M577. It is working, I've tested it with AMD k6-2 300, it posted, also was running it like 15 minutes in BIOS. So at least one super socket 7, as it was for 22$, it's not bad, considering there was also Matrox Mystique 220 VGA PCI inside.
Anyway, the owner offered me four socket 7 boards instead of that supersocket 7, to pick up from, with Via chipsets (basicaly most of them are "VX Pro something"). I have already Intel 430TX and Intel 430VX board for socket 7, so I thought I take one with VIA chipset, just for benchmarks/comparsions, how much slower it is from Intel chipsets. (and to have more realistic build from that era, as most of us, at least here, could not afford Intel TX chipset, I was only teenager in that era, so basicaly father bought some socket 7 and Pentium 133 combo, and it was probably some cheaper board, so I want to have also one, that is like one I used to have in 1997-1998, which was probably some cheap Via chipset one)
For 15$, seems it's not so bad deal, even to take PCchips or some noname OEM brand ones, right?
Out of these four, which one to take? Which one of them is best option (and why)? All of them are for 15$.
I removed one option, that doesn't have SDRAM, only SIMMs, but it is only my assumption, that ones with SDRAM would be better take, so mobo is more versatile.
Socket 7 one https://ibb.co/KhgwF3p
Socket 7 two https://ibb.co/pfQfYBj
Socket 7 three https://ibb.co/zRbpjyb
Socket 7 four https://ibb.co/bF8tgTM
Chipsets closeups:
one https://ibb.co/RC4qMzb
two https://ibb.co/9WkvC4D
three https://ibb.co/Tt3VrnS
four https://ibb.co/BwJtFBq